No ke aha i ʻoki ʻole ai ka pā kila? Ma hope o ka nānā ʻana, hiki ke ʻike ʻia nā kumu nui penei:
ʻAʻole kūpono ke koho ʻana o ka nozzle mai ke poʻo laser no ka mānoanoa o ka papa hana;
ʻO ka wikiwiki o ka lainaʻokiʻoki laser he wikiwiki loa a pono ka mana o ka hana e ho'ēmi i ka wikiwiki o ka laina;
ʻAʻole pololei ka ʻike o ka nozzle, ʻo ia ka mea e nui ai ka hewa o ke kūlana laser, a pono e nānā hou ʻia ka ʻikepili sensitivity o ka nozzle, ʻoiai ke ʻoki ʻana i ka alumini.